在珍珠河三角洲地区的土壤抗生素污染和生态风险评估,中国
Yong'an Chen1,2, Zhenxian He1,3, Haochuan Wu4
1School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China.
Toxics
|November 27, 2025
概括
珍珠河三角洲土壤的抗生素污染普遍存在,造成生态风险. 诺,β-乳酸和四环素是关键污染物,与畜牧业和水产养殖业有关,需要紧急的缓解策略.
科学领域:
- 环境化学环境化学
- 土壤科学 土壤科学
- 生态毒理学 生态毒理学
背景情况:
- 过度使用抗生素会污染土壤,破坏生态过程,威胁作物生产率.
- 农业土壤中的抗生素残留物构成了严重的环境和健康问题.
研究的目的:
- 在珍珠河三角洲的农业土壤中调查22种抗生素的空间模式和流行率.
- 评估污染特征和相关的生态健康风险.
主要方法:
- 使用ArcGIS 10.7.7进行空间分析.
- 斯皮尔曼相关性分析.
- 风险系数 (RQ) 建模用于评估生态风险.
主要成果:
- 在所有240个土壤样本中检测到抗生素,总度高达897μg·kg-1.1.
- 诺,β-乳和四环环素是最常见的抗生素类别,也是主要的生态风险驱动因素.
- 82.5%的地点显示中高生态风险,与牲畜,家禽和水产养殖活动相关.
结论:
- 珍珠河三角洲的抗生素污染严重,具有重大生态风险.
- 缓解策略应侧重于监管兽药使用,改善便管理和实施污染补救措施.
- 调查结果支持加强对农业土壤污染的监督,以提高可持续性.
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